Improvement in preserve-cans



P. H. COTTON.

Fruit Can.

Patented Dec. 21. 1858.

HUI

Ill

C0 N.Y. (OSBORNE? PROCES UNTTED STATES PATENT OFFICE.

P. H. COTTON, OF DEMOPOLIS, ALABAMA.

IMPROVEMENT IN PRESERVE-CANS.

Specification forming part of Letters Patent No. 22,35 l, dated December21, 1858.

To aZZ whom it may concern.-

Be it known that I, P. H. COTTON, of Demopolis, in the county of Marengoand State of Alabama, have invented certain new and useful Improvementsin Preserve-Cans; and I do hereby declare that the following is a full,clear, and exact description of the same, reference being had to theaccompanying drawings, forming part of this specification, in whichFigure 1 is a central section of a can with my improvement. Fig. 2 is atop view of the same. 7

Similar letters of reference indicate corresponding parts in the twofigures.

This invention relates to that kind of preserve-can whose cover consistssimply of a cap fitting over the mouth of the can, and is sealed by waxor composition poured into a channel surrounding the neck of the can andrim of the cover.

It consists in the application of fastenings of the kind and in themanner hereinafter speciiied to confine the cover on the can against thepressure of steam that is generated to expel the air, until condensationtakes place and the sealing composition becomes sufficiently hard toretain the cover in its place.

It also consists in forming a recess in the lower part of the neck ofthe can and making the rim of the cap to extend down some distance oversaid recess for the purpose of pre venting the sealing compositionbecoming detached from the sides of the channel, and the cap beingthereby unsealed.

To enable others to make and use my invention, I will describe itsconstruction and operation.

A is the body of the can, having the bottom.

of its neck a connected with the sides by a plate, 1), whose form isthat of an inverted irustum of a cone, which plate combines with theneck a to form the channel 0 to receive the sealing-cement.

e is the recess in the lower part of the neck.

B is the cover, fitting snugly over the neck, and having its rim (Z deepenough to lap over a portion of the recess 6, as shown in Fig. 1.

h t g h i g are the fastenings for the cover, consisting of pieces ofwire bent to the form of a right angle or letter L, and having theirstems fitted to turn in tubes or eyes ff, secured at equal distancesapart to the upper part of the exterior of the body of the can, andhaving stops formed at the bottom of the stems h h by turning up orupsetting them, as shown atggin Fig. 1, to prevent them drawing out ofthe eyes. The stems hit of the i'astenings are of such length that whendrawn upward in the eyes ff as high as permitted by the stops 9 9 theirheads t twill fit closely to the top of the cover when the latter is inits place. There may be any number of these fastenings, but three aresufficient for all purposes.

Before putting the cover on the can the heads 01 i of the fasteningsmust be turned aside in the manner shown in Fig. 2 in red outline. Afterthe can has been filled, and while its contents are at a temperature notless than 212, the cover is put on and the fastenings turned to bringtheir heads over the top of it, in which condition they are shown inblack in Fig. l. The melted wax or sealing composition is then pouredinto the channel 0, and by the time it is set a vacuum will 'have beenformed in the upper part ofthe cap, which renders the'fastenings nolonger necessary to keep the cap on. The fastenings, however, perform avery important duty before the setting of the wax, in preventing anydisturbance of the cap. When the melted wax or sealing composition ispoured into the channel 0, some of it runs under the bottom edge of therim d, and this, when the composition is set, secures the whole body ofit and prevents its becoming detached from the sides of the channel.

WVhat I claim as my invention, and desire to secure by Letters Patent,is-

In combination with the channel 0, outside the neck of the can, theemployment of a re- I cess, c, in the neck, and the extension of the rimof the cap over such recess, substantially as and for the purposespecified.

1?. H. COTTON,

W'itnesses:

J. H. Errns, B. O. GAY.

